Is Spoof Timezone safe?

Low risk

Spoof Timezone lets framed webbrowsertools.com pages persistently change the extension's timezone setting.

Spoof Timezone injects scripts on visited sites and listens for messages in frames whose URL begins with https://webbrowsertools.com/timezone/. A framed page can send a configure-timezone message that stores a selected timezone and offset in the extension's local storage for future browsing.

Part of this rating comes from analysis signals we haven't published as detailed findings yet.

Jouev0.5.0Firefox Add-ons
17Risk
Who publishes it

Joue - no other listings under this identity, 2 shared hostnames

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
Joue

Shared hosts - 2 hostnames

Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.

greenwichmeantime.com
Also called by 1 other listing: Spoof Timezone
demo.immich.app
Also called by 3 other listings, including Spoof Timezone

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

What it can do

Permissions this extension asks for, as declared in version 0.5.0. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Read and change your data on every site you visit

    *://*/*

  • Store data in your browser

    storage

  • Run its own code inside the pages you visit

    scripting

  • See every page you navigate to, as you navigate to it

    webNavigation

  • Add items to the right-click menu

    contextMenus

  • Show you desktop notifications

    notifications

Updated 30 September 2026amo-924584